<table cellpadding="0" cellspacing="0" border="0">
  <tr>
    <td>hello</td>
    <td>
      <!-- contents of the cell with 0 min width and non-0 pref width -->
      <table cellpadding="0" cellspacing="0" border="0">
        <tr>
          <td width="5"></td>
        </tr>
      </table>
    </td>
  </tr>
  <tr>
    <td colspan="2" width="100"></td>
  </tr>
</table>
